Synthesis and characterization Y2O3:Eu3+ nanocrystals prepared via solvothermal refluxing route

M. K. Devaraju, Shu Yin, Tsugio Sato

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9 Citations (Scopus)

Abstract

Y2O3:Eu3+ nanocrystals were prepared via co-precipitation-solvothermal refluxing-calcination method using three kinds of organic solvents, propylene glycol, 1,3-butanediol and polyethylene glycol and yttrium chloride hexahydrate and europium chloride as starting materials. The Y2O3:Eu3+ nanocrystals with diameter of 20-50 nm prepared by refluxing in polyethylene glycol followed by calcinations at 800-1000 °C exhibited the strongest luminescence at 611 nm under the excitation wavelength of 254 nm than the reference sample prepared via conventional co-precipitation method. The photoluminescence spectra of the samples were recorded at room temperature. The effect of concentration of Eu3+ (Eu3+/Y3+ atomic ratio: 0.01-0.1) on the photoluminescence intensity was also investigated. The samples with the Eu3+/Y3+ atomic ratio of 0.07 exhibited the strongest emission at 611 nm and quenching effect was observed above 0.10.

Original languageEnglish
Pages (from-to)1849-1854
Number of pages6
JournalMaterials Science and Engineering C
Volume29
Issue number6
DOIs
Publication statusPublished - 2009 Aug 1

Keywords

  • Eu:YO
  • Nanoparticles
  • Phosphor
  • Photoluminescence

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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